In an abdominal fat measuring device that is a health managing device, vertical and horizontal widths (2a, 2b) of the abdomen of a subject are measured, and an ellipse defined by such widths is defined as an outer shape ellipse (A). The abdominal fat measuring device stores in advance an image representing the subcutaneous fat of the abdominal back side as an additional image in association with a proportion of the visceral fat mass and the subcutaneous fat mass. In the abdominal fat measuring device, the corresponding image is extracted from the stored additional images from the measured proportion of the viscera! fat mass and the subcutaneous fat mass of the subject, added to the outer shape ellipse (B), and then a figure representing the measured fat free mass, visceral fat mass, and subcutaneous fat mass is drawn and displayed in the outer shape ellipse (C).
